26 C h r a m e s u s i c o r i a c Lee, lateral view. (Enlarged) 



28 Dendroctonus terebrans Oliv., antenna. (Greatly enlarged) 



29 H y 1 u r g o p s g 1 a 1) r a t u s Zett., antenna. (Greatly enlarged) 



30 Phloeotribus 1 i ni i n a r i s Harris, antcnnal funicle and club. 



(Greatly enlarged) 



180 



